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Finding the Fourth Proportional to 359,207,998.80, 538,811,998.20 and 155,134,654.80

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Solution

The fourth proportional to 359,207,998.80, 538,811,998.20 and 155,134,654.80 is: 232,701,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,207,998.80 : 538,811,998.20 = 155,134,654.80 : x
  2. Step 2: Convert to fraction form
    359,207,998.80/538,811,998.20 = 155,134,654.80/x
  3. Step 3: Cross multiply
    359,207,998.80x = 538,811,998.20 × 155,134,654.80
  4. Step 4: Simplify right side
    359,207,998.80x = 83,588,413,342,855,232
  5. Step 5: Solve for x
    x = 83,588,413,342,855,232/359,207,998.80
  6. Step 6: Final answer
    x = 232,701,982.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.